Heating plant.



- D. DREIER.

HEATING PLANT.

APPLICATION FILED JUNE26. 1916.

1,235,126 w Patented July 31, 1917.

2 SHEETS*SHEET I.

Witnesses 2 SHEETS-SHEET 2- Patented July 31, 1917.

' D. DREIER.

HEATING PLANT.

APPLICATION HLED JUNE 26, 1916.

\ v ,flflfiewif Inventor Attorneys' Witnesses DOM INICK DREIER, on LIVINGSTON, MONTANA.

- HEATING- PLANT.

Application filed June 26, 1916. Serial No. 105,983.

To all whom it may concern:

Beit known that I,- DOMINICK Damien, a citizen of the United States, residing at Livingston, in the county of Park and State of.

Montana, have invented a new and useful Heating Plant, of. Which the following is a specification. v

The'device forming the subject matter of this application is a steam heating plant, and one object of the .present invention is to provide a structure of this type through which the steam will find its way in a minimum amount of time.

' Another object of the invention is to pro-- vide a steam heating plant in which air valves located adjacent the radiators may be dispensed with, thereby avoiding any possibility of damage to floors, carpets, ceilings and the like, caused by water and steam Spurting out of the air valves on the radiators.

Another object of the invention is to pro- 7 vide novel means whereby the waterof condensation derived from the steam will be forced back into the boiler. Another object of the invention is to provide novel means whereby, although an adequate and eflicient outlet for air is provided, no air will be sucked back into the steam circulatory system when the pressure therein falls. I

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that' changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, with-- out departing from the spirit of the inven 4 tion.

. Specification or: Letters Patent.

Patented July 31, 1917.

being disposed in the positions which they will assume while air is escaping; and

Fig. 3 is a view similar to Fig.2, but showing the parts in the positions which they will assume while the air outlet is closed, and while Water of condensation is being forced'back to the boiler.

In the accompanying drawings, the numeral 1 indicates a radiator and the numeral- 2 denotes a boiler. At 3 there appears a separating tank equipped with an upstanding neck 4 having a lateral outlet .5, the neck 4 being provided with guides 6. At the top of the separating tank 3 there is formed a seat 7. A stem 8 is mounted to reciprocate vertically in the guides 6 and carries a valve 9 cooperating with the seat 7.- Attached to the lower end of the stem 8 and located within the tank 3 is a float 10.

A water return conduit 11 leads from the separating-tank 3 to the boiler 2. In the water return conduit 11 is located a check valve 12 which closes toward the separating tank 3. Leading from the boiler 2 isa delivery pipe 14 connected withone side of the radiator 1, the delivery pipe being extended as shown at 15,. so that as many radiators as desired may be provided. Leading-from the radiator 1 is a return pipe 16 which communicates with the boiler 2. The pipe 16 is prolonged as shown at 17 so as to accommodate more than one radiator. Branched oii .from the return pipe 16 and leading to the separator tank 3 is an air pipe 18 in which. is interposed a thermostatic valve 19. The valve 19 is constructed to permit the passage of air and water, but is adapted to close when steam traverses the air pipe 18. Thereare many'thermostatic valves of this kind, and I do not claim to have invented this thermostatic valve per se.

boiler 2 is comparatively low and that the boiler isbeing fired up. Under such .cir-

Interposed in the air pipe 18 between the thermostatic valve 19 and the cumstances, the major part of the water of f condensation returns to the boiler 2 by way of the pipe 16, while the air and a small part of the water .tive vertical positions of the pipes 17 and 18, it being understood that Fig. l of the drawings is diagrammatic, to a considerable extent, so far as the relative positions of the pipes 17 and-l8 are concerned. In any event, the air in the piping will be conducted away, and Whatever quantity of-water of condensation happens to traverse the pipe 18 will be received in the separating tank 3.

When steam traverses the air pipe 18 and comes into contact with the thermostatic valve 19, the latter closes, and consequently, steam cannot flow out through the separator tank 3 and its outlet 5.

After a time, a considerable amount of water will accumulate in the separator tank 3, as shown in Fig. 3. The float 10 then disposes the valve 9 a ainst the seat 7 and the air outlet 5 is sealed. in the separator tank 3 then will force the accumulated water in the tank 3 back to the boiler 2 by way of the pipe 11, the valve 12 opening to permit such an operation. The valve 12 prevents water from being forced back from the boiler 2 into the separating tank 3, and the valve 20, closing away from the separator tank 3 and toward the radiator 1, prevents air from being'drawn into the radiator l and the piping system, when the pressure within the boiler 2 falls. It

.is to be noted that, in the absence of the The air pressure withvalve 20, air might be drawn into the air outlet 5 when the valve 9 is depressed as shown in Fig. 2.

Th device forming the subject matter of this application not only renders unnecessary, air outlet valves on the radiators, but, as well, enables the steam to work through the structure quickly.

Having thus described the invention, what is claimed is In a steam heating system, a boiler; a separating tank having an air outlet; a valve controlling the air outlet; a fioat rigidly assembled with the valve and disposed within the separating tank; a single water return conduit leading from the separating tank to the boil r; a check valve in the conduit and closing toward the'separating tank; a delivery pipe leading from the boiler to the radiator; a thermostatic valve mounted directly on the tank and constructed to permit the passage of air and water, but adapted to close when steam enters the valve; a return pipe leading from the radiator to the boiler; a single air pipe leading from the return pipe to the thermostatic valve; and a check valve in the air pipe, and independent of the float, the last specified check valve being located between the thermostatic valve and the point of juncture between the air pipe and the return pipe, the said check valve opening toward the separating tank.

In testimony that I claim the a radiator;

foregoing as my own, I have hereto affixed my Sig-- nature in the presence of two witnesses.

DOMINICK DREIER.

l/Vitnesses;

' C. STUART DIoKsoN, WV. H. PETHYBRIDGE. 

